Internet DRAFT - draft-fu-softwire-dslite-mib
draft-fu-softwire-dslite-mib
Network Working Group Y. Fu
Internet Draft S. Jiang
Intended status: Standards Track Huawei Technologies Co., Ltd
Expires: November 30, 2012 J. Dong
Y.Chen
Tsinghua University
May 28, 2012
DS-Lite Management Information Base (MIB)
draft-fu-softwire-dslite-mib-05
Status of this Memo
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This Internet-Draft will expire on November 30, 2012.
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Abstract
This memo defines a portion of the Management Information Base (MIB) for
using with network management protocols in the Internet community. In
particular, it defines managed objects for DS-Lite.
Table of Contents
1. Introduction ................................................. 3
2. The Internet-Standard Management Framework ................... 3
3. Terminology .................................................. 3
4. Difference from the IP tunnel MIB and NAT MIB ................ 3
5. Relationship to the IF-MIB ................................... 5
6. Structure of the MIB Module .................................. 5
6.1. The dsliteTunnel Subtree ................................ 5
6.2. The dsliteNAT Subtree ................................... 5
6.3. The dsliteInfo Subtree .................................. 6
6.4. The dsliteTrap Subtree .................................. 6
6.5. The dsliteConformance Subtree ........................... 6
7. MIB modules required for IMPORTS ............................. 6
8. Definitions .................................................. 6
9. Extending this MIB for Gateway Initiated Dual-Stack Lite..... 27
10. IANA Considerations ........................................ 27
11. Security Considerations .................................... 28
12. References ................................................. 28
12.1. Normative References .................................. 28
12.2. Informative References ................................ 29
13. Change Log [RFC Editor please remove] ...................... 29
Author's Addresses ............................................. 30
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1. Introduction
Dual-Stack Lite [RFC 6333] is a solution to offer both IPv4 and IPv6
connectivity to customers crossing IPv6 only infrastructure. One of
its key components is an IPv4-over-IPv6
tunnel, which is used to provide IPv4 connection across service
provider IPv6 network. Another key component is a carrier-grade IPv4-
IPv4 NAT to share service provider IPv4 addresses among customers.
This document defines a portion of the Management Information Base
(MIB) for use with network management protocols in the Internet
community. This MIB module may be used for configuration and
monitoring the devices in the Dual-Stack Lite scenario.
This MIB also can be extended to the application for Gateway
Initiated Dual-Stack Lite.
2. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
[RFC3410].
Managed objects are accessed via a virtual information store, termed
the MIB. MIB objects are generally accessed through the Simple
Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in
[RFC2578], [RFC2579] and [RFC2580].
3. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
4. Difference from the IP tunnel MIB and NAT MIB
The key technologies for DS-Lite are IP in IP (IPv4-in-IPv6) tunnel
and NAT (IPv4 to IPv4 translation).
Notes: According to the section 5.2 of RFC6333, DS-Lite only defines
IPv4 in IPv6 tunnels at this moment, but other types of encapsulation
could be defined in the future. So this DS-Lite MIB only support IP
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in IP encapsulation, if the RFC6333 defined other tunnel types in the
future, this DS-Lite MIB will be updated then.
The NAT-MIB [RFC4008] is designed to carry translation from any
address family to any address family, therefore supports IPv4 to IPv4
translation.
The tunnel MIB [RFC4087] is designed for managing tunnels of any type
over IPv4 and IPv6 networks, therefore supports IP in IP tunnels.
However, NAT MIB and tunnel MIB together are not sufficient to
support DS-Lite. This document describes the specific MIB
requirements for DS-Lite, as below.
In DS-Lite scenario, the tunnel type is IP in IP, more
precisely, is IPv4 in IPv6. Therefore, it is unnecessary to
describe tunnel type in DS-Lite MIB.
In DS-Lite scenario, the translation type is IPv4 private
address to IPv4 public address. Therefore, it is unnecessary to
describe the type of address in the corresponding
tunnelIfLocalInetAddress and tunnelIfRemoteInetAddress objects
in DS-Lite MIB.
In DS-Lite scenario, the AFTR is not only the tunnel end
concentrator, but also a 4-4 translator. Within the AFTR,
tunnel information and translation information MUST be mapped
each other. Two independent MIB is not able to reflect this
mapping relationship. Therefore, a combined MIB is necessary.
If the Gateway Initiated Dual-Stack Lite scenario[I-D.ietf-
softwire-gateway-init-ds-lite] is required, the MIB defined in
this document could be easily extended for GI-DS-Lite. CID
(Context Identifier) can be extended to the tunnel MIB to
identifier the access devices which have the same IPv4 address.
And both CID and SWID (Softwire Identifier) can be extended to
the NAT MIB for performing the NAT binding look up.
The implementation of the IP Tunnel MIB is required for DS-Lite. The
tunnelIfEncapsMethod in the tunnelIfEntry should be set to
dsLite("xx"), and corresponding entry in the DS-Lite module will
exist for every tunnelIfEntry with this tunnelIfEncapsMethod. The
tunnelIfRemoteInetAddress must be set to ::.
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5. Relationship to the IF-MIB
The Interfaces MIB [RFC2863] defines generic managed objects for
managing interfaces. Each logical interface (physical or virtual)has
an ifEntry. Tunnels are handled by creating a logical interface
(ifEntry) for each tunnel. DS-Lite tunnel also acts as a virtual
interface, which has corresponding entries in IP Tunnel MIB and
Interface MIB. Those corresponding entries are indexed by ifIndex.
The ifOperStatus in ifTable would be used to represent whether the
DS-Lite tunnel function has been originated. The ifInUcastPkts
defined in ifTabel will represent the number of IPv6 packets which
have been encapsulated with IPv4 packets in it. The ifOutUcastPkts
defined in ifTabel contains the number of IPv6 packets which can be
decapsulated to IPv4 in the virtual interface. Also, the IF-MIB
defines ifMtu for the MTU of this tunnel interface, so DS-Lite MIB
does not need to define the MTU for tunnel.
6. Structure of the MIB Module
The DS-Lite MIB provides a way to configure and manage the devices
(AFTRs)in DS-Lite scenario through SNMP.
DS-Lite MIB is configurable on a per-interface basis. It depends on
several parts of the IF-MIB [RFC2863], tunnel MIB [RFC4087], and NAT
MIB [RFC4008].
6.1. The dsliteTunnel Subtree
The dsliteTunnel subtree describes managed objects used for managing
tunnels in the DS-Lite scenario. Because some objects defined in
Tunnel MIB are not access, a few new objects are defined in DS-Lite
MIB.
6.2. The dsliteNAT Subtree
The dsliteNAT Subtree describes managed objects used for
configuration as well as monitoring of AFTR which is capable of NAT
function. Because the NAT MIB supports the NAT management function in
DS-Lite, we may reuse it in DS-Lite MIB. The dsliteNAT Subtree also
provides the information of mapping relationship between the tunnel
MIB and NAT MIB by extending B4 address to the bind table in NAT
MIB.
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6.3. The dsliteInfo Subtree
The dsliteInfo Subtree provides the statistical information for DS-
lite.
6.4. The dsliteTrap Subtree
The dsliteTrap Subtree provides trap information in DS-lite instance.
6.5. The dsliteConformance Subtree
The Subtree provides conformance information of MIB objects.
7. MIB modules required for IMPORTS
This MIB module IMPORTs objects from [RFC4008], [RFC2580],
[RFC2578], [RFC2863], [RFC4001], [RFC3411].
8. Definitions
DSLite-MIB DEFFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, mib-2, transmission,
Gauge32, Integer32, Counter64
FROM SNMPv2-SMI
RowStatus, StorageType, DisplayString
FROM SNMPv2-TC
ifIndex, InterfaceIndexOrZero
FROM IF-MIB
IANAtunnelType
FROM IANAifType-MIB
InetAddress, InetAddressIPv6, InetPortNumber
FROM INET-ADDRESS-MIB
NatAddrMapId, natAddrMapName, natAddrMapEntryType,
natAddrMapLocalAddrFrom, natAddrMapLocalAddrTo,
natAddrMapLocalPortFrom, natAddrMapLocalPortTo,
natAddrMapGlobalAddrFrom, natAddrMapGlobalAddrTo,
natAddrMapGlobalPortFrom, natAddrMapGlobalPortTo
natAddrPortBindGlobalAddr, natAddrPortBindGlobalPort,
NatBindId, natAddrPortBindSessions,
natAddrPortBindMaxIdleTime, natAddrPortBindCurrentIdleTime,
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natAddrPortBindInTranslates, natAddrPortBindOutTranslates
FROM natMIB
dsliteMIB MODULE-IDENTITY
LAST-UPDATED "201205280000Z" -- May 28, 2012
ORGANIZATION "IETF Softwire Working Group"
CONTACT-INFO
"Yu Fu
Huawei Technologies Co., Ltd
Huawei Building, 156 Beiqing Rd., Hai-Dian District
Beijing, P.R. China 100095
EMail: eleven.fuyu@huawei.com
Sheng Jiang
Huawei Technologies Co., Ltd
Huawei Building, 156 Beiqing Rd., Hai-Dian District
Beijing, P.R. China 100095
EMail: jiangsheng@huawei.com
Jiang Dong
Tsinghua University
Department of Computer Science, Tsinghua University
Beijing 100084
P.R. China
Email: dongjiang @csnet1.cs.tsinghua.edu.cn
Yuchi Chen
Tsinghua University
Department of Computer Science, Tsinghua University
Beijing 100084
P.R. China
Email: flashfoxmx@gmail.com "
DESCRIPTION
"The MIB module is defined for management of object in the
DS-Lite scenario. "
::= { transmission xxx } --xxx to be replaced with correct
value
dsliteTunnel OBJECT IDENTIFIER
:: = { dsliteMIB 1 }
dsliteNAT OBJECT IDENTIFIER
:: = { dsliteMIB 2 }
dsliteInfo OBJECT IDENTIFIER
:: = { dsliteMIB 3 }
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dsliteTraps OBJECT IDENTIFIER
::= { dsliteMIB 4 }
--Conformance
dsliteConformance OBJECT IDENTIFIER
:: = { dsliteMIB 5 }
--dsliteTunnel
--dsliteTunnelTable
dsliteTunnelTable OBJECT-TYPE
SYNTAX SEQUENCE OF dsliteTunnelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table containing information on configured
tunnels. This table can be used to map CPE address to the
associated AFTR address. It can also be used for row
creation."
:: = { dsliteTunnel 1 }
dsliteTunnelEntry OBJECT-TYPE
SYNTAX dsliteTunnelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry in this table contains the information on a
particular configured tunnel."
INDEX { dsliteTunnelStartAddress,
dsliteTunnelEndAddress,
ifIndex }
:: = { dsliteTunnelTable 1 }
dsliteTunnelEntry :: =
SEQUENCE {
dsliteTunnelStartAddress InetAddressIPv6,
dsliteTunnelStartAddPreLen Integer32,
dsliteTunnelEndAddress InetAddressIPv6,
dsliteTunnelStatus RowStatus,
dsliteTunnelStorageType StorageType
}
dsliteTunnelStartAddress OBJECT-TYPE
SYNTAX InetAddressIPv6
MAX-ACCESS read-create
STATUS current
DESCRIPTION
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"The address of the start point of the tunnel."
::= { dsliteTunnelEntry 1 }
dsliteTunnelStartAddPreLen OBJECT-TYPE
SYNTAX Integer32 (0..128)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"IPv6 prefix length of the IP address of the
start point of the tunnel."
::= { dsliteTunnelEntry 2 }
dsliteTunnelEndAddress OBJECT-TYPE
SYNTAX InetAddressIPv6
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The address of the endpoint of the tunnel."
::= { dsliteTunnelEntry 3 }
dsliteTunnelStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this row, by which new entries may be
created, or old entries deleted from this table.
::= { dsliteTunnelEntry 4 }
dsliteTunnelStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type of this row. If the row is
permanent(4), no objects in the row need be
writable."
::= { dsliteTunnelEntry 5 }
--dsliteNAT
--dsliteNATMapTable(define address pool)
--dsliteNATBindTable
dsliteNATMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF dsliteNATMapEntry
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
"This table contains information about address map
parameters."
:: = { dsliteNAT 1 }
dsliteNATMapEntry OBJECT-TYPE
SYNTAX dsliteNATMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" This entry represents an address map to be used for
NAT and contributes to the address mapping tables of
AFTR."
INDEX { ifIndex,
dsliteNATMapIndex }
:: = { dsliteNATMapTable 1 }
dsliteNATMapEntry :: =
SEQUENCE {
dsliteNATMapIndex NatAddrMapId,
dsliteNATMapAddrName natAddrMapName,
dsliteNATMapEntryType natAddrMapEntryType,
dsliteNATMapLocalAddrFrom natAddrMapLocalAddrFrom,
dsliteNATMapLocalAddrTo natAddrMapLocalAddrTo,
dsliteNATMapLocalPortFrom natAddrMapLocalPortFrom,
dsliteNATMapLocalPortTo natAddrMapLocalPortTo,
dsliteNATMapGlobalAddrFrom natAddrMapGlobalAddrFrom,
dsliteNATMapGlobalAddrTo natAddrMapGlobalAddrTo,
dsliteNATMapGlobalPortFrom natAddrMapGlobalPortFrom,
dsliteNATMapGlobalPortTo natAddrMapGlobalPortTo,
dsliteNATMapAddrUsed natAddrMapAddrUsed,
dsliteNATMapStorageType StorageType,
dsliteNATMapRowStatus RowStatus
}
dsliteNATMapIndex OBJECT-TYPE
SYNTAX NatAddrMapId
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Along with ifIndex, this object uniquely
identifies an entry in the dsliteNATMapTable.
Address map entries are applied in the order
specified by dsliteNATMapIndex."
::= { dsliteNATMapEntry 1 }
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dsliteNATMapAddrName OBJECT-TYPE
SYNTAX natAddrMapName
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Name identifying all map entries in the table associated
with the same interface. All map entries with the same
ifIndex MUST have the same map name."
::= { dsliteNATMapEntry 2 }
dsliteNATMapEntryType OBJECT-TYPE
SYNTAX natAddrMapEntryType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This parameter can be used to set up static
or dynamic address maps."
::= { dsliteNATMapEntry 3 }
dsliteNATMapLocalAddrFrom OBJECT-TYPE
SYNTAX natAddrMapLocalAddrFrom
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the first IP address of the range
of IP addresses mapped by this translation entry.
The value of this object must be less than or
equal to the value of the dsliteNATMapLocalAddrTo
object."
::= { dsliteNATMapEntry 4 }
dsliteNATMapLocalAddrTo OBJECT-TYPE
SYNTAX natAddrMapLocalAddrTo
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the last IP address of the range of
IP addresses mapped by this translation entry. If only
a single address is being mapped, the value of this
object is equal to the value of natAddrMapLocalAddrFrom.
The value of this object must be greater than or equal to
the value of the natAddrMapLocalAddrFrom object."
::= { dsliteNATMapEntry 5 }
dsliteNATMapLocalPortFrom OBJECT-TYPE
SYNTAX natAddrMapLocalPortFrom
MAX-ACCESS read-create
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STATUS current
DESCRIPTION
"The value of this object must be less than or equal
to the value of the dsliteNATMapLocalPortTo object.
If the translation specifies a single port, then the
value of this object is equal to the value of
dsliteNATMapLocalPortTo."
DEFVAL { 0 }
::= { dsliteNATMapEntry 6 }
dsliteNATMapLocalPortTo OBJECT-TYPE
SYNTAX natAddrMapLocalPortTo
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object must be greater than or equal
to the value of the dsliteNATMapLocalPortFrom object.
If the translation specifies a single port, then
the value of this object is equal to the value of
dsliteNATMapLocalPortFrom."
DEFVAL { 0 }
::= { dsliteNATMapEntry 7 }
dsliteNATMapGlobalAddrFrom OBJECT-TYPE
SYNTAX natAddrMapGlobalAddrFrom
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the first IP address of
the range of IP addresses being mapped to.
The value of this object must be less than
or equal to the value of the
dsliteNATMapGlobalAddrTo object.
::= { dsliteNATMapEntry 8 }
dsliteNATMapGlobalAddrTo OBJECT-TYPE
SYNTAX natAddrMapGlobalAddrTo
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the last IP address of the range
of IP addresses being mapped to. If only a single
address is being mapped to, the value of this object
is equal to the value of dsliteNATMapGlobalAddrFrom.
The value of this object must be greater than or equal
to the value of the dsliteNATMapGlobalAddrFrom object.
::= { dsliteNATMapEntry 9 }
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dsliteNATMapGlobalPortFrom OBJECT-TYPE
SYNTAX natAddrMapGlobalPortFrom
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object must be less than or equal
to the value of the dsliteNATMapGlobalPortTo object.
If the translation specifies a single port, then the
value of this object is equal to the value
dsliteNATMapGlobalPortTo."
DEFVAL { 0 }
::= { dsliteNATMapEntry 10 }
dsliteNATMapGlobalPortTo OBJECT-TYPE
SYNTAX natAddrMapGlobalPortTo
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object must be greater than or
equal to the value of the dsliteNATMapGlobalPortFrom
object. If the translation specifies a single port,
then the value of this object is equal to the
value of dsliteNATMapGlobalPortFrom."
DEFVAL { 0 }
::= { dsliteNATMapEntry 11 }
dsliteNATMapAddrUsed OBJECT-TYPE
SYNTAX natAddrMapAddrUsed
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of addresses pertaining to this address
map that are currently being used from the NAT pool."
::= { dsliteNATMapEntry 12 }
dsliteNATMapStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this conceptual row.
Conceptual rows having the value 'permanent'
need not allow write-access to any columnar
objects in the row."
REFERENCE
"Textual Conventions for SMIv2, Section 2."
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DEFVAL { nonVolatile }
::= { dsliteNATMapEntry 13 }
dsliteNATMapRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this conceptual row."
REFERENCE
"Textual Conventions for SMIv2, Section 2."
::= { dsliteNATMapEntry 14 }
dsliteNATBindTable OBJECT-TYPE
SYNTAX SEQUENCE OF dsliteNATBindEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information about currently
active NAT binds in AFTR. This table extends the
natAddrPortBindTable designed in NAT MIB (RFC
4008) by IPv6 address of B4."
:: = { dsliteNAT 2 }
dsliteNATBindEntry OBJECT-TYPE
SYNTAX dsliteNATBindEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry in this table holds the relationship between
tunnel information and nat bind information. These entries
are lost upon agent restart."
INDEX { ifIndex,
dsliteNATBindLocalAddr,
dsliteNATBindLocalPort,
dsliteB4Addr }
:: = { dsliteNATBindTable 1 }
dsliteNATBindEntry :: =
SEQUENCE {
dsliteNATBindLocalAddr InetAddress,
dsliteNATBindLocalPort InetPortNumber,
dsliteNATBindGlobalAddr natAddrPortBindGlobalAddr,
dsliteNATBindGlobalPort natAddrPortBindGlobalPort,
dsliteNATBindId NatBindId,
dsliteB4Addr dsliteTunnelStartAddress,
dsliteB4PreLen dsliteTunnelStartAddPreLen,
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dsliteNATBindMapIndex NatAddrMapId,
dsliteNATBindSessions natAddrPortBindSessions,
dsliteNATBindMaxIdleTime natAddrPortBindMaxIdleTime,
dsliteNATBindCurrentIdleTime natAddrPortBindCurrentIdleTime,
dsliteNATBindInTranslates natAddrPortBindInTranslates,
dsliteNATBindOutTranslates natAddrPortBindOutTranslates
}
dsliteNATBindLocalAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents the private IP address of host."
::= { dsliteNATBindEntry 1 }
dsliteNATBindLocalPort OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents the private-realm Port
number of host."
::= { dsliteNATBindEntry 2 }
dsliteNATBindGlobalAddr OBJECT-TYPE
SYNTAX natAddrPortBindGlobalAddr
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the public-realm IP
address of host."
::= { dsliteNATBindEntry 3 }
dsliteNATBindGlobalPort OBJECT-TYPE
SYNTAX natAddrPortBindGlobalPort
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the public-realm Port number
of host."
::= { dsliteNATBindEntry 4 }
dsliteNATBindId OBJECT-TYPE
SYNTAX NatBindId
MAX-ACCESS read-only
STATUS current
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DESCRIPTION
"This object represents a bind id that is
dynamically assigned to each bind by AFTR.
Each bind is represented by a unique bind
id across the dsliteNATBindTable."
::= { dsliteNATBindEntry 5 }
dsliteB4Addr OBJECT-TYPE
SYNTAX dsliteTunnelStartAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the relationship between
tunnel start point to the Bind entry, which extends
the source IPv6 address of packet to the Bind table."
::= { dsliteNATBindEntry 6 }
dsliteB4PreLen OBJECT-TYPE
SYNTAX dsliteTunnelStartAddPreLen
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the IPv6 prefix length of the
start point of tunnel, which is also need to extend to
the Bind table."
::= { dsliteNATBindEntry 7 }
dsliteNATBindMapIndex OBJECT-TYPE
SYNTAX NatAddrMapId
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object is a pointer to the dsliteNATMapTable
entry used in creating this BIND."
::= { dsliteNATBindEntry 8 }
dsliteNATBindSessions OBJECT-TYPE
SYNTAX natAddrPortBindSessions
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" This object represents the number of sessions currently
using this BIND."
::= { dsliteNATBindEntry 9 }
dsliteNATBindMaxIdleTime OBJECT-TYPE
SYNTAX natAddrPortBindMaxIdleTime
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MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the maximum time for
which this bind can be idle without any sessions
attached to it."
::= { dsliteNATBindEntry 10 }
dsliteNATBindCurrentIdleTime OBJECT-TYPE
SYNTAX natAddrPortBindCurrentIdleTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"At any given instance, this object indicates the
time that this bind has been idle without any sessions
attached to it."
::= { dsliteNATBindEntry 11 }
dsliteNATBindInTranslates OBJECT-TYPE
SYNTAX natAddrPortBindInTranslates
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of inbound packets that were
translated as per this bind entry."
::= { dsliteNATBindEntry 12 }
dsliteNATBindOutTranslates OBJECT-TYPE
SYNTAX natAddrPortBindOutTranslates
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of outbound packets that were
translated as per this bind entry."
::= { dsliteNATBindEntry 13 }
--dsliteInfo
dsliteSessionLimitTable OBJECT-TYPE
SYNTAX SEQUENCE OF dsliteSessionLimitEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table containing information about session
limit. It can also be used for row creation."
:: = { dsliteInfo 1 }
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dsliteSessionLimitEntry OBJECT-TYPE
SYNTAX dsliteSessionLimitEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry in this table contains the information to be
used for configuring session limits for DS-lite."
INDEX { dsliteInstanceName,
dsliteSessionLimitaType }
:: = { dsliteSessionLimitTable 1 }
dsliteSessionLimitEntry :: =
SEQUENCE {
dsliteSessionLimitInstanceName DisplayString,
dsliteSessionLimitType INTEGER,
dsliteSessionLimitNumber Integer32,
dsliteSessionLimitStorageType StorageType,
dsliteSessionLimitRowStatus RowStatus
}
dsliteSessionLimitInstanceName OBJECT-TYPE
SYNTAX DisplayString (SIZE (1..31))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" This object represents the instance name
that is limited."
::= { dsliteSessionLimitEntry 1 }
dsliteSessionLimitType OBJECT-TYPE
SYNTAX INTEGER
{
tcp(0),
udp(1),
icmp(2),
total(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the session limit type :
tcp or udp or totally."
::= { dsliteSessionLimitEntry 2 }
dsliteSessionLimitNumber OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-create
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STATUS current
DESCRIPTION
" This table represents the limit number of the session."
::= { dsliteSessionLimitEntry 3 }
dsliteSessionLimitStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this conceptual row. Conceptual
rows having the value 'permanent' need not allow
write-access to any columnar objects in the row."
::= { dsliteSessionLimitEntry 4 }
dsliteSessionLimitRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" The status of this conceptual row."
REFERENCE
"Textual Conventions for SMIv2, Section 2."
DEFVAL { nonVolatile }
::= { dsliteSessionLimitEntry 5 }
dslitePortLimitTable OBJECT-TYPE
SYNTAX SEQUENCE OF dslitePortLimitEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table is used to configure port limits for a
DS-Lite instance."
::= { dsliteInfo 2 }
dslitePortLimitEntry OBJECT-TYPE
SYNTAX dslitePortLimitEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry in this table contains the information to be
used for configuring port limits for DS-lite."
INDEX { dslitePortLimitInstanceName,
dslitePortLimitType }
::= { dslitePortLimitTable 1 }
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dslitePortLimitEntry ::=
SEQUENCE {
dslitePortLimitInstanceName DisplayString,
dslitePortLimitType INTEGER,
dslitePortLimitNumber Integer32,
dslitePortLimitStorageType StorageType,
dslitePortLimitRowStatus RowStatus
}
dslitePortLimitInstanceName OBJECT-TYPE
SYNTAX DisplayString (SIZE (1..31))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" This object represents the instance name
that is limited."
::= { dslitePortLimitEntry 1 }
dslitePortLimitType OBJECT-TYPE
SYNTAX INTEGER
{
tcp(0),
udp(1),
icmp(2),
total(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the port limit
type: tcp or udp or totally."
::= { dslitePortLimitEntry 2 }
dslitePortLimitNumber OBJECT-TYPE
SYNTAX Integer32 (1..300000)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents the limit number of the
port usage."
::= { dslitePortLimitEntry 3 }
dslitePortLimitStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
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"The storage type for this conceptual row. Conceptual
rows having the value 'permanent' need not allow
write-access to any columnar objects in the row."
::= { dslitePortLimitEntry 4 }
dslitePortLimitRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Create or delete table row."
::= { dslitePortLimitEntry 5 }
dsliteAFTRAlarmScalar OBJECT IDENTIFIER ::= { dsliteInfo 3 }
dsliteAFTRAlarmB4Addr OBJECT-TYPE
SYNTAX dsliteTunnelStartAddress
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"This object indicate the IP address of
B4 that send alarm "
::= { dsliteAFTRAlarmScalar 1 }
dsliteAFTRAlarmProtocolType OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"This object indicate the procotol type of alarm,
0:tcp,1:udp,2:icmp,3:total "
::= { dsliteAFTRAlarmScalar 2 }
dsliteAFTRAlarmMapAddrName OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"This object indicate the name of dsliteNATMapAddrName "
::= { dsliteAFTRAlarmScalar 3 }
dsliteAFTRAlarmSpecificIP OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
" This object indicate the IP address whose port usage
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reach threshold "
::= { dsliteAFTRAlarmScalar 4 }
dsliteAFTRAlarmConnectNumber OBJECT-TYPE
SYNTAX Integer32 (60..90)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
" This object indicate the threshold of DS-Lite
connections alarm."
::= { dsliteAFTRAlarmScalar 5 }
dsliteStatisticTable OBJECT-TYPE
SYNTAX SEQUENCE OF dsliteStatisticEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table provides statistical information
of DS-Lite."
::= { dsliteInfo 4 }
dsliteStatisticEntry OBJECT-TYPE
SYNTAX dsliteStatisticEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table provides statistical information
of DS-Lite."
INDEX { dsliteStatisticInstanceName }
::= { dsliteStatisticTable 1 }
dsliteStatisticEntry ::=
SEQUENCE {
dsliteStatisticInstanceName DisplayString,
dsliteStatisticDiscard Counter64,
dsliteStatisticReceived Counter64,
dsliteStatisticTransmitted Counter64,
dsliteStatisticIpv4Session Counter64,
dsliteStatisticIpv6Session Counter64,
dsliteStatisticStorageType StorageType,
dsliteStatisticRowStatus RowStatus
}
dsliteStatisticInstanceName OBJECT-TYPE
SYNTAX DisplayString (SIZE (1..31))
MAX-ACCESS read-only
STATUS current
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DESCRIPTION
" This object indicate the instance name
that is limited."
::= { dsliteStatisticEntry 1 }
dsliteStatisticDiscard OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" This object indicate the count number of
the discarded packet."
::= { dsliteStatisticEntry 2 }
dsliteStatisticReceived OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object indicate the count number of
received packet count."
::= { dsliteStatisticEntry 3 }
dsliteStatisticTransmitted OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object indicate the count number of
transmitted packet count."
::= { dsliteStatisticEntry 4 }
dsliteStatisticIpv4Session OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" This object indicate the number of the
current IPv4 Session."
::= { dsliteStatisticEntry 5 }
dsliteStatisticIpv6Session OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-create
STATUS current
DESCRIPTION
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" This object indicate the number of the
current IPv6 Session."
::= { dsliteStatisticEntry 6 }
dsliteStatisticRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Create or delete table row."
::= { dsliteStatisticEntry 7 }
---dslite trap
dsliteTunnelNumAlarm NOTIFICATION-TYPE
STATUS current
DESCRIPTION
"This trap is triggered when dslite tunnel
reach the threshold."
::= { dsliteTraps 1 }
dsliteAFTRUserSessionNumAlarm NOTIFICATION-TYPE
OBJECTS { dsliteAFTRAlarmProtocolType,
dsliteAFTRAlarmB4Addr }
STATUS current
DESCRIPTION
" This trap is triggered when sessions of
user reach the threshold."
::= { dsliteTraps 2 }
dsliteAFTRPortUsageOfSpecificIpAlarm NOTIFICATION-TYPE
OBJECTS { dsliteAFTRAlarmMapAddrName,
dsliteAFTRAlarmSpecificIP }
STATUS current
DESCRIPTION
"This trap is triggered when used NAT
ports of map address reach the threshold."
::= { dsliteTraps 3 }
--Module Conformance statement
dsliteCompliances OBJECT IDENTIFIER ::= { dsliteConformance 1 }
dsliteCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Description."
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MODULE -- this module
MANDATORY-GROUPS { dsliteNATMapGroup,
dsliteTunnelGroup }
::= { dsliteCompliances 1 }
dsliteGroups OBJECT IDENTIFIER ::= { dsliteConformance 2 }
dsliteAFTRAlarmScalarGroup OBJECT-GROUP
OBJECTS { dsliteAFTRAlarmB4Addr, dsliteAFTRAlarmProtocolType,
dsliteAFTRAlarmMapAddrName, dsliteAFTRAlarmSpecificIP,
dsliteAFTRAlarmConnectNumber }
STATUS current
DESCRIPTION
" The collection of this objects are used to give the
information about AFTR alarming Scalar."
::= { dsliteGroups 1 }
dsliteNATMapGroup OBJECT-GROUP
OBJECTS { dsliteNATMapIndex, dsliteNATMapAddrName,
dsliteNATMapEntryType, dsliteNATMapLocalAddrFrom,
dsliteNATMapLocalAddrTo, dsliteNATMapLocalPortFrom,
dsliteNATMapLocalPortTo, dsliteNATMapGlobalAddrFrom,
dsliteNATMapGlobalAddrTo, dsliteNATMapGlobalPortFrom,
dsliteNATMapGlobalPortTo, dsliteNATMapAddrUsed,
dsliteNATMapStorageType, dsliteNATMapRowStatu }
STATUS current
DESCRIPTION
" The collection of this objects are used to give the
information about NAT address mapping."
::= { dsliteGroups 2 }
dsliteTunnelGroup OBJECT-GROUP
OBJECTS { dsliteTunnelStartAddress, dsliteTunnelStartAddPreLen,
dsliteTunnelEndAddress,
dsliteTunnelStatus,
dsliteTunnelStorageType }
STATUS current
DESCRIPTION
" The collection of this objects are used to give the
information of tunnel in ds-lite."
::= { dsliteGroups 3 }
dsliteNATBindGroup OBJECT-GROUP
OBJECTS { dsliteNATBindLocalAddr, dsliteNATBindLocalPort,
dsliteNATBindGlobalAddr, dsliteNATBindGlobalPort,
dsliteNATBindId, dsliteB4Addr, dsliteB4PreLen,
dsliteNATBindMapIndex, dsliteNATBindSessions,
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dsliteNATBindMaxIdleTime,
dsliteNATBindCurrentIdleTime,
dsliteNATBindInTranslates,
dsliteNATBindOutTranslates }
STATUS current
DESCRIPTION
" The collection of this objects are used to give the
information about NAT Bind."
::= { dsliteGroups 4 }
dsliteSessionLimitGroup OBJECT-GROUP
OBJECTS { dsliteSessionLimitInstanceName,
dsliteSessionLimitType, dsliteSessionLimitNumber,
dsliteSessionLimitStorageType,
dsliteSessionLimitRowStatus }
STATUS current
DESCRIPTION
" The collection of this objects are used to give the
information about port limit."
::= { dsliteGroups 5 }
dslitePortLimitGroup OBJECT-GROUP
OBJECTS { dslitePortLimitInstanceName,
dslitePortLimitType, dslitePortLimitNumber,
dslitePortLimitStorageType,
dslitePortLimitRowStatus }
STATUS current
DESCRIPTION
" The collection of this objects are used to give the
information about port limit."
::= { dsliteGroups 6 }
dsliteStatisticGroup OBJECT-GROUP
OBJECTS { dsliteStatisticInstanceName,
dsliteStatisticDiscard,
dsliteStatisticReceived,
dsliteStatisticTransmitted,
dsliteStatisticIpv4Session,
dsliteStatisticIpv6Session,
dsliteStatisticStorageType,
dsliteStatisticRowStatus }
STATUS current
DESCRIPTION
" The collection of this objects are used to give the
statistical information of ds-lite."
::= { dsliteGroups 7 }
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dsliteTrapsGroup NOTIFICATION-GROUP
NOTIFICATIONS { dsliteTunnelNumAlarm,
dsliteAFTRUserSessionNumAlarm,
dsliteAFTRPortUsageOfSpecificIpAlarm }
STATUS current
DESCRIPTION
"The collection of this objects are used to give the
trap information of ds-lite."
::= { dsliteGroups 8 }
END
9. Extending this MIB for Gateway Initiated Dual-Stack Lite
Similar to DS-lite, GI-DS-lite enables the service provider to
share public IPv4 addresses among different customers by combining
tunneling and NAT. GI-DS-lite extends existing access tunnels
beyond the access gateway to an IPv4-IPv4 NAT using softwires with
an embedded context identifier that uniquely identifies the end host
the tunneled packets belong to. The MIB defined in this document can
easily extended to use for GI-DS-Lite scenario. New object as CID
SHOULD be extended to the dsliteTunnelTable. And a new object as
dsliteTunnelID can be defined in DS-Lite MIB as SWID in GI-DS-Lite.
Both CID and SWID SHOULD be extended to the dsliteNATBindTable. It
will use the combination of CID and SWID as the unique identifier for
the end host and store it in the NAT binding entry.
10. IANA Considerations
The MIB module in this document uses the following IANA-assigned
OBJECT IDENTIFIER values recorded in the SMI Numbers registry, and
the following IANA-assigned tunnelType values recorded in the
IANAtunnelType-MIB registry:
Descriptor OBJECT IDENTIFIER value
---------- -----------------------
DSLite-MIB { transmission XXX }
IANAtunnelType ::= TEXTUAL-CONVENTION
SYNTAX INTEGER {
dsLite ("XX") -- dslite tunnel
}
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Notes: As the Appendix A of the IP Tunnel MIB[RFC4087] described that
it has already assigned the value direct(2) to indicate the tunnel
type is IP in ip tunnel, but it is still difficult to distinguish the
DS-Lite tunnel packets and the normal IP in IP tunnel packets in the
scenario of the AFTR connecting to both the DS-lite tunnel and IP in
IP tunnel.
11. Security Considerations
The DS-Lite MIB module can be used for configuration of certain
objects, and anything that can be incorrectly configured, with
potentially disastrous results. Because this MIB module reuses the
IP tunnel MIB and nat MIB, the security considerations for these MIBs
are also applicable to the DS-Lite MIB.
Unauthorized read access todsliteTunnelEndAddress, or any object in
the dsliteBindRelationTable or dslitePortBindRelationTable would
reveal information about the mapping information.
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPSec),
even then, there is no control as to who on the secure network is
allowed to access and GET/SET (read/change/create/delete) the objects
in this MIB module.
It is RECOMMENDED that implementers consider the security features as
provided by the SNMPv3 framework (see [RFC3410], section 8),
including full support for the SNMPv3 cryptographic mechanisms (for
authentication and privacy).
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
enable cryptographic security. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to an
instance of this MIB module is properly configured to give access to
the objects only to those principals (users) that have legitimate
rights to indeed GET or SET (change/create/delete) them.
12. References
12.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
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[RFC2578] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Structure of Management Information Version 2 (SMIv2)",
RFC 2578, April 1999.
[RFC2579] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Textual
Conventions for SMIv2", RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", RFC 2580, April 1999.
[RFC2863] McCloghrie, K. and F. Kastenholz. "The Interfaces Group
MIB", RFC 2863, June 2000.
[RFC3411] Harrington, D., Presuhn, R., and B. Wijnen, "An
Architecture for Describing Simple Network Management
Protocol (SNMP) Management Frameworks", RFC 3411, December
2002.
[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J.
Schoenwaelder, "Textual Conventions for Internet Network
Addresses", RFC 4001, February 2005.
[RFC4008] Rohit, R., Srisuresh, P., Raghunarayan,R., Pai, N., and
Wang, C., "Definitions of Managed Objects for Network
Address Translators (NAT)", RFC 4008, March 2005.
[RFC4087] Thaler, D., "IP Tunnel MIB", RFC 4087, June 2005.
[RFC6333] Durand, A., Droms, R., Woodyatt, J., and Y. Lee, "Dual-
Stack Lite Broadband Deployments Following IPv4
Exhaustion", RFC6333, August 2011.
12.2. Informative References
[I-D.ietf-softwire-gateway-init-ds-lite]
Brockners, F., Gundavelli, S., Speicher, S., and D. Ward,
"Gateway Initiated Dual-Stack Lite Deployment",
draft-ietf-softwire-gateway-init-ds-lite-08 (work in
progress), July 2011.
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.
13. Change Log [RFC Editor please remove]
draft-fu-softwire-dslite-mib-00, original version, 2011-05-04
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draft-fu-softwire-dslite-mib-01, 01 version, 2011-07-11
draft-fu-softwire-dslite-mib-02, 02 version, 2011-08-27
draft-fu-softwire-dslite-mib-03, 03 version, 2012-02-22
draft-fu-softwire-dslite-mib-04, 04 version, 2012-04-24
draft-fu-softwire-dslite-mib-05, 05 version, 2012-05-28
Author's Addresses
Yu Fu
Huawei Technologies Co., Ltd
Huawei Building, 156 Beiqing Rd.,
Hai-Dian District, Beijing 100095
P.R. China
Email: eleven.fuyu@huawei.com
Sheng Jiang
Huawei Technologies Co., Ltd
Huawei Building, 156 Beiqing Rd.,
Hai-Dian District, Beijing 100095
P.R. China
Email: jiangsheng@huawei.com
Jiang Dong
Tsinghua University
Department of Computer Science, Tsinghua University
Beijing 100084
P.R. China
Email: dongjiang@csnet1.cs.tsinghua.edu.cn
Yuchi Chen
Tsinghua University
Department of Computer Science, Tsinghua University
Beijing 100084
P.R. China
Email: flashfoxmx@gmail.com
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